D. distinguish
IV Look at the signs. Choose the best answer (A, B, C or D) for questions 15 and 16. (0.5 pt)
15. What does the sign mean?
A. You should use plastic bag.
B. Using plastic bag is prohibited.
C. You can only use one bag.
D. Using Plastic bag is useful.
16. Sign appears on toys to mean that the toy is unsuitable for kids who are
A. older than 3
0-3
B. younger than 3
C. babies only
D. toddlers only
V. Read the following passage. Decide if the statements from 17 to 20 are True or False, and choose the